Battery Box Beam Cavity Reinforcement for Welded Wall Strength
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Solution Overview
Problem
The existing battery housing structures face issues with stress concentration and low strength at welding seams, particularly between walls and beams, leading to potential failure and inadequate structural integrity.
Innovation Solution
Incorporating a reinforcing structure within the beam's cavity, fixed to both the beam and wall using connectors, enhances the rigidity and strength between the beam and wall without occupying internal space, thereby addressing the weakness of welding seams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If welding is used to fix the beam to the wall, then the housing can be assembled, but the welding seam is prone to stress concentration and has low strength
Solution Approach 1:
A reinforcing structure is introduced as an intermediary component between the beam and the wall. This reinforcing structure includes reinforcing pieces that are welded to both the beam and the wall, creating a stronger connection path and distributing stress more effectively than a direct welding seam alone.
Solution Approach 2:
The connection structure uses a composite approach combining the beam, wall, and reinforcing pieces made of different material configurations. The reinforcing structure creates a composite connection system that leverages the strengths of multiple components to overcome the weakness of any single welding seam.
2Strength
If a reinforcing structure is added to increase strength, then the housing strength improves, but the internal space of the housing is occupied
Solution Approach 1:
The reinforcing structure is nested within the existing housing framework. The reinforcing pieces are positioned along the welding seams and within the structural framework, utilizing the existing space efficiently rather than adding external components that would occupy valuable internal volume.
Solution Approach 2:
The reinforcing structure is applied locally at critical stress points rather than uniformly throughout the entire housing. The reinforcing pieces are strategically placed at welding seams and high-stress areas, providing strength enhancement only where needed while preserving overall internal space.
Data Source
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AI summary
Embodiments of the present application provide a housing of a battery, a battery, a power consumption device, and a method and apparatus for producing a housing. The housing of the battery includes: a plurality of walls, configured to form an accommodating space of the housing, the plurality of walls including a first wall; a first beam, provided in the accommodating space, the first beam intersecting with the first wall, and the first beam having a first cavity inside; and a first reinforcing structure, at least part of the first reinforcing structure being accommodated in the first cavity, and the first reinforcing structure being respectively fixed to the first beam and the first wall through a first connector and a second connector, so that the first wall is fixedly connected to the first beam. According to the housing of the battery, the battery, the power consumption apparatus, and the method and apparatus for producing the housing in the embodiments of the present application, the strength of the housing could be enhanced.